A head mounted display device and a power management method are provided. The head mounted display device includes a host device and a power input device. The power input device is detachably connected to a power device and an electronic device. The power input device generates a first input signal according to a supply voltage value of the power device, and generates a second input signal according to power supply information of the electronic device. The host device enters a power saving mode or performs a boot-up operation according to the first input signal and the second input signal.
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3. He head mounted display device according to claim 2, wherein when the electronic device is connected to the power input device, the power input device receives power supply information provided by the electronic device, determines whether a power supply power of the electronic device is not less than a minimum required power allowing the head mounted display device to boot up according to the power supply info nation, sets the second input signal as the first logic value when the power supply power is not less than the minimum required power, and clears the second input signal as the second logic value when the power supply power is less than the minimum required power.
A head-mounted display (HMD) device includes a power input device that interfaces with an external electronic device, such as a smartphone or computer, to determine whether the electronic device can provide sufficient power to boot up the HMD. The power input device receives power supply information from the electronic device, which includes details about the available power output. The device then evaluates whether this power meets or exceeds a minimum threshold required for the HMD to start up. If the power supply is adequate, the power input device sets a second input signal to a first logic value (e.g., high), enabling the HMD to proceed with booting. If the power supply is insufficient, the second input signal is cleared to a second logic value (e.g., low), preventing the HMD from booting to avoid potential damage or malfunction. This ensures the HMD only operates when connected to a reliable power source, enhancing system stability and user safety. The power input device may also include additional circuitry to manage power distribution and signal processing, ensuring seamless integration with the HMD's power management system.
4. He head mounted display device according to claim 3, wherein when the first input signal and the second input signal are both the first logic values, the host device executes the boot-up operation.
5. He head mounted display device according to claim 1, wherein when the power device is connected to the power input device and the electronic device is not connected to the power input device the host device enters the power saving mode.
6. He head mounted display device according to claim 1, wherein when the power device is not connected to the power input device and the electronic device is connected to the power input device, the power input device determines whether the power supply power is not less than a first critical value, and the host device enters the power saving mode when the power supply power is less than the first critical value.
8. He head mounted display device according to claim 7, wherein the second critical value represents a minimum required power allowing the head mounted display device to boot up, and the first critical value represents a minimum operable power of the head mounted display device.
A head-mounted display (HMD) device includes a power management system that monitors and controls power consumption to ensure reliable operation. The device determines a second critical power value representing the minimum power required to boot up the HMD, ensuring the system can initialize properly. Additionally, a first critical power value is defined as the minimum power required for the HMD to operate normally after booting. The power management system continuously tracks the current power level and compares it against these critical values. If the power level falls below the second critical value, the device prevents booting to avoid system failure. If the power level drops below the first critical value while the device is running, the system may trigger power-saving measures or shut down gracefully to prevent data loss or hardware damage. This ensures the HMD remains functional within safe power limits, extending battery life and maintaining operational stability. The system may also include a power source, such as a battery, and a controller that enforces these power thresholds.
9. He head mounted display device according to claim 7, wherein in the load detection mode, the host device reconfirms the power supply information, and enters the power saving mode or executes the boot-up operation according to whether the power supply power is not less than the first critical value.
10. He head mounted display device according to claim 7, wherein in the power saving mode, when the power device is connected with the power input device and the supply voltage value is greater than a reference value, the host device executes the boot-up operation.
A head-mounted display (HMD) device includes a power management system designed to optimize power consumption. The device operates in a power-saving mode to reduce energy usage when not in active use. In this mode, the device monitors the connection status of an external power input device and the supply voltage level. When the power input device is connected and the supply voltage exceeds a predefined reference value, the device automatically initiates a boot-up operation. This ensures the device powers on only when sufficient power is available, preventing unnecessary activation during low-power conditions. The system enhances battery life and user convenience by avoiding unnecessary power cycles. The HMD may also include additional features such as a display module, a processing unit, and sensors for tracking user movements, all of which are managed to conserve power when the device is idle. The power-saving mode is particularly useful for portable HMDs, where efficient power management is critical for extended usage. The invention addresses the challenge of balancing performance and energy efficiency in wearable display devices.
18. He power management method according to claim 17, wherein the first critical value is a minimum required power allowing the head mounted display device to boot up, and the second critical value is a minimum operable power of the head mounted display device.
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August 30, 2021
November 8, 2022
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